161362988 has 12 divisors (see below), whose sum is σ = 282910992. Its totient is φ = 80531280.

The previous prime is 161362987. The next prime is 161363017. The reversal of 161362988 is 889263161.

It is not an unprimeable number, because it can be changed into a prime (161362987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35120 + ... + 39447.

It is an arithmetic number, because the mean of its divisors is an integer number (23575916).

Almost surely, 2^161362988 is an apocalyptic number.

It is an amenable number.

161362988 is a deficient number, since it is larger than the sum of its proper divisors (121548004).

161362988 is a wasteful number, since it uses less digits than its factorization.

161362988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75112 (or 75110 counting only the distinct ones).

The product of its digits is 124416, while the sum is 44.

The square root of 161362988 is about 12702.8732182920. The cubic root of 161362988 is about 544.4207160313.

The spelling of 161362988 in words is "one hundred sixty-one million, three hundred sixty-two thousand, nine hundred eighty-eight".